A98L-0031-0004
Fanuc A98L-0031-0004 Battery. This can be a Fujitsu LR6 in a 1.5V AA cell size or a LR6(c) Alkaline Battery. These were freely available. DNC no longer carry these batteries, but our advice would be buy them from your local Battery source, etc.
Normally three of these batteries are used to backup the MEM pcb’s memory for Fanuc 0-C, 0-Mate-C, 0-D, 0-Mate-D, 15A.
This Battery has an alternate catalog number in the Fanuc maint manuals of A02B-0094-K131.